Mr. Gary Thompson reports

BRIXTON METALS COMMENCES 2026 THORN PROJECT EXPLORATION PROGRAM

Drilling has commenced on Brixton Metals Corp.'s fully financed 10,000-metre 2026 exploration program focused on copper and gold at its wholly owned Thorn project in northwestern British Columbia, Canada. The Thorn project is located approximately 90 kilometres east-northeast of Juneau, Alaska, and 120 kilometres west of Dease Lake, B.C. Drilling activities commenced on June 1; 249 metres in three holes have been completed.

2026 Thorn project exploration objectives

• Camp Creek: expand the known near-surface high-sulphidation copper-gold-silver mineralized zone by drilling to the north and south;
• Camp Creek: complete an updated mineral resource estimate for the Camp Creek porphyry (see news release dated Oct. 29, 2014);
• Catalyst, Tempest, Sentinel and Icy: extend the known limits of mineralization;
• Trapper gold target: advance a maiden resource through infill and stepout drilling;
• Camp Creek corridor and east targets: use drone magnetic surveying, mapping and soil geochemistry to refine 2026 drill targets; the drone magnetic survey is 70 per cent complete to date;
• Camp Creek and Trapper: conduct geometallurgical testing to support mineral resource updates.

Chairman and chief executive officer Gary R. Thompson stated: "We are excited to kick off another exploration season at Thorn with an initial focus on Camp Creek, Catalyst, Tempest, Sentinel and Trapper. This fully funded program is designed to advance several priority targets through drilling, geophysics and fieldwork, while also supporting progress toward future mineral resource estimates at Camp Creek and Trapper."

2026 program overview

Brixton's 2026 exploration plans at the Thorn project are centred on advancing the Camp Creek high-sulphidation gold system, the Catalyst and Tempest copper-gold porphyries, and the Sentinel copper porphyry target through a fully financed 10,000-metre drill program and an ongoing 16-line-kilometre magnetic survey.

Camp Creek high-sulphidation and porphyry system

Initial drilling is focused on the Camp Creek porphyry-epithermal system, which includes a shallow high-sulphidation gold zone and a deeper porphyry copper-gold-silver-molybdenum system. Shallow drilling in the high-sulphidation zone is evaluating the continuity, orientation and controls of mineralized structures identified through earlier drilling and surface work. This gold system includes the Glenfiddich, Northside and Talisker vein systems, as well as the Oban breccia. The 2026 Camp Creek program is also intended to support a future mineral resource estimate for both the high-sulphidation and porphyry parts of this kilometre-scale system.

Catalyst and Tempest copper-gold porphyry systems

2026 drilling on Thorn will also focus on advancing the recently discovered Catalyst and Tempest copper-gold porphyries (see news releases dated Oct. 30, 2025, and Dec. 1, 2025). Both porphyry systems show intermittent copper and gold mineralization from surface to depths of more than 500 metres. An IP survey performed in 2025 also delineates extensive km-wide high-chargeability zones, which, together with a kilometre-wide copper-in-soils footprint, suggest the potential for extensive mineralized systems within this northeast-trending corridor, called the Camp Creek corridor.

Sentinel copper porphyry and the east targets

The east targets, including Sentinel, Icy, Val and Bing, represent a growing cluster of copper-gold porphyry targets in the eastern part of the Thorn project. Sentinel is the most advanced target within this group and is defined by a broad alteration footprint, porphyry-style stockwork veining and copper-molybdenum geochemical anomalies on surface. Rock sampling at Sentinel returned up to 1.54 per cent copper and 0.54 per cent molybdenum, supporting its selection as a priority target for follow-up drilling.

Icy and Bing exhibit alteration, mineralization, and structural characteristics consistent with porphyry systems. Drilling at the Bing and Icy targets was primarily conducted by Newmont Mining Corp. in 1965 and 1966. At Bing, drilling identified copper and molybdenum mineralization associated with porphyry-style quartz veining and potassic alteration, with the strongest mineralization hosted in quartz monzonite and feldspar porphyry. Three main alteration zones have been identified, with copper values ranging from 1,000 to 30,000 ppm (parts per million) in localized areas. At Icy, drilling and surface sampling encountered weak to moderate copper and molybdenum mineralization, including disseminated pyrite and localized chalcopyrite and molybdenite associated with quartz veins near feldspar biotite porphyry dykes and diorite contacts.

Collectively, the geological and geochemical data indicate a porphyry corridor with potential for multiple porphyry centres. Two thousand twenty-six field programs of magnetic surveying, mapping, prospecting and geochemical sampling are progressing to constrain target geometry and support drill planning.

Note: The potential quantity and grade of the east targets are conceptual. Insufficient exploration has been completed to define a mineral resource, and there is no certainty that further exploration will result in the target being delineated as a mineral resource.

Qualified person

Duncan McBean is the vice-president of exploration for the company, who is a qualified person as defined by National Instrument 43-101. Mr. McBean has verified the referenced data disclosed in this press release and has approved the technical information presented herein.

About Brixton Metals Corp.

Brixton Metals is a Canadian exploration company focused on the advancement of its mining projects. Brixton wholly owns four exploration projects: Brixton's flagship Thorn copper-gold-silver-molybdenum project, the Langis and HudBay silver projects in Ontario, the Hog Heaven copper-silver-gold project in northwestern Montana, United States, which is optioned to Ivanhoe Electric Inc., and the Atlin goldfields project located in northwest B.C., which is optioned to Eldorado Gold Corp. Brixton Metals shares trade on the TSX-V under the ticker symbol BBB and on the OTCQX under the ticker symbol BBBXF.

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